| package peer |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import ( |
| "io" |
| "time" |
| |
| "github.com/apache/trafficcontrol/lib/go-tc" |
| |
| "github.com/json-iterator/go" |
| ) |
| |
| // Handler handles peer Traffic Monitor data, taking a raw reader, parsing the data, and passing a result object to the ResultChannel. This fulfills the common `Handler` interface. |
| type Handler struct { |
| ResultChannel chan Result |
| } |
| |
| // NewHandler returns a new peer Handler. |
| func NewHandler() Handler { |
| return Handler{ResultChannel: make(chan Result)} |
| } |
| |
| // Result contains the data parsed from polling a peer Traffic Monitor. |
| type Result struct { |
| ID tc.TrafficMonitorName |
| Available bool |
| Errors []error |
| PeerStates tc.CRStates |
| PollID uint64 |
| PollFinished chan<- uint64 |
| Time time.Time |
| } |
| |
| // Handle handles a response from a polled Traffic Monitor peer, parsing the data and forwarding it to the ResultChannel. |
| func (handler Handler) Handle(id string, r io.Reader, format string, reqTime time.Duration, reqEnd time.Time, err error, pollID uint64, usingIPv4 bool, pollFinished chan<- uint64) { |
| result := Result{ |
| ID: tc.TrafficMonitorName(id), |
| Available: false, |
| Errors: []error{}, |
| PollID: pollID, |
| PollFinished: pollFinished, |
| Time: reqEnd, |
| } |
| |
| if err != nil { |
| result.Errors = append(result.Errors, err) |
| } |
| |
| if r != nil { |
| json := jsoniter.ConfigFastest // TODo make configurable? |
| err = json.NewDecoder(r).Decode(&result.PeerStates) |
| if err == nil { |
| result.Available = true |
| } else { |
| result.Errors = append(result.Errors, err) |
| } |
| } |
| |
| handler.ResultChannel <- result |
| } |